V2.3 first release of ploxiln fork

Changes in this fork:

• #1 fix combination of htpasswd auth and --cookie refresh
• bitly#464 add --whitelist-domain option
• bitly#651 make --ssl-insecure-skip-verify apply to DefaultTransport
• bitly#424 support combination of --set-xauthrequest and --pass-access-token
• bitly#641 add /oauth2/sign_out to docs
• bitly#595 update fsnotify package import
• bitly#577 fix hmacauth package import in Gopkg.toml

Changes in bitly master branch since v2.2:

• bitly#423 add --request-logging-format option
• bitly#549 support bcrypt passwords in htpasswd
• bitly#376 do not set cookie domain by default (it works opposite the way one would assume)
• bitly#510 more robust cookie clearing due to domain default change
• bitly#284 fix --skip-provider-button for /sign_in route
• bitly#426 allow zero upstreams (for auth_request mode)
• bitly#422 strip token from more url logging statements
• bitly#529 fix sign-in page css typo
• bitly#431 bitly#502 better error message for upstream parsing
• bitly#448 switch from 18F/hmacauth to mbland/hmacauth
• bitly#484 tests: replace bmizerany/assert with stretchr/testify/assert
• bitly#503 generate sha256sum.txt for release builds
• bitly#491 switch from gpm to dep for dependency management
• bitly#381 strip dist binary builds (smaller)
• provider updates:
  • bitly#389 add OpenID Connect
  • bitly#472 remove MyUSA
  • bitly#466 add GetUserName() method to Provider for user unrelated to email, use for GitHub
  • bitly#414 GitHub provider: iterate over multiple pages of user organizations
  • bitly#392 GitHub provider: use Authorization header
  • bitly#496 GitLab provider: update to use api v4
  • bitly#447 GitLab provider: reduce default oauth2 scope
  • bitly#421 bitly#561 Google provider: (minor) use base64.RawURLEncoding.DecodeString()
• README updates:
  • bitly#555
  • bitly#514
  • bitly#444
  • bitly#382
  • bitly#402
  • bitly#405
  • bitly#425